研究目的
Investigating the scalability and efficiency of thermally co-evaporated perovskite solar cells (PSCs) and mini-modules.
研究成果
The research demonstrates the excellent scalability of thermally co-evaporated PSCs, achieving record PCEs for both small-area devices and mini-modules. The work proves the compatibility of perovskite technology with industrial processes and its potential for next-generation photovoltaics, including tandem and building-integrated applications.
研究不足
The study highlights the challenges of scaling up PSCs, including the high resistivity of transparent conductive oxides and the need for precise control over the co-evaporation process to achieve uniform and high-quality perovskite films over large areas.
1：Experimental Design and Method Selection:
The study employed a thermal co-evaporation method for depositing MAPbI3 perovskite layers. The methodology included active layer engineering, interfacial optimization, surface treatments, and light management to enhance PSC performance.
2：Sample Selection and Data Sources:
FTO-coated glass substrates were used for PSCs and mini-modules. The perovskite layers were deposited by co-evaporating PbI2 and CH3NH3I (MAI).
3：List of Experimental Equipment and Materials:
Equipment included a thermal evaporation system, spin coater, UV-ozone cleaner, and various characterization tools like XRD, SEM, UV-vis spectrophotometer, and PL spectrometer. Materials included FTO glass, SnO2, TiO2, PCBM, Spiro-oMeTAD, and gold or ITO electrodes.
4：Experimental Procedures and Operational Workflow:
Substrates were cleaned and treated with UV-ozone. Electron transport layers (SnO2 or TiO2) were deposited by spin coating. Perovskite layers were deposited by thermal co-evaporation, followed by surface treatment with MAI and potassium acetate (KAc). Hole transport layers and electrodes were then deposited.
5：Data Analysis Methods:
Performance of PSCs and mini-modules was evaluated through J-V measurements, IPCE, EIS, and stability tests under continuous illumination.
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